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Precision ASTM A307 Grade A Hex Head Bolts Class A Tolerance Full Sizes Available Low Carbon Steel Hexagon Head Bolt

Name: Precision ASTM A307 Grade A Hex Head Bolts Class A Tolerance Full Sizes Available Low Carbon Steel Hexagon Head Bolt
Brand: Bolnut Fastener Co., Ltd
SKU: 2281141315

Jiangsu, ChinaBolnut Fastener Co., Ltd

US$0.10

1 Piece

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Low Carbon Steel

Type

Hexagon Head

Model NO.

307A Hex bolt

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

307A

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Plain, Black Zinc,Yellow Zinc Plated, Hdgv

MOQ

1000pieces

Name

Hex Bolt

Sample

5-8PCS Free Samples But Not Included Freight

Customized

Delivery Time

7-45 Days

Transport Package

20-25kg/Carton+900kg Pallet

Specification

#10-32 1/4 5/16 3/8 3/4 Customized

Trademark

BNT

Origin

China

HS Code

731815

Production Capacity

1000ton/Month

Key features

ASTM A307 Grade A Compliance: Made from high-quality low carbon steel, compliant with ASTM A307 standard for reliable performance.

Wide Size & Finish Options: Available in various sizes and finishes including zinc-plated, hot-dip galvanized, and Dacromet.

Custom Logo & Design: We can accommodate custom logos or designs on the products without issue.

Free Samples Available: Free samples provided for standard fasteners; existing customers also get free express charges.

Flexible Delivery Time: Stock items deliver in 2-5 days; bulk orders take 18-25 days with expedited options.

Professional Quality Assurance: Rigorous durability testing and technical design ensure fasteners stand the test of time.

Competitive Pricing: Professional factory production capabilities offer premium hex bolts at cost-effective prices.

Verified Manufacturer: Verified supplier on Made-in-China with rigorous certification process ensuring legitimacy.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceFast Delivery

Bolnut Fastener Co., Ltd

Jiangsu, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 13 YearsNearest Port: SHANGHAI , NINGBO ,ZHAPU , SHENZHEN, TIANJINGAverage Response Time: ≤0.87h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company in Zhangjiagang, Suzhou, with business scopes covering labor protection products, apparel, textiles, communication equipment, electronics, and certain medical protective products. It is described as a professional technical supplier and offers multiple customization modes, ODM services, and OEM services for popular brands. However, it has only one R&D engineer, launched no new products in the past year, and does not provide 3D software or SDK services. Service procedures and complaint-handling procedures exist, but supplier approval records are incomplete. Financial information is represented only by reporting years, without performance values. No overseas warehouse, showroom, overseas branch or offline trade-show participation is reported.

Supplier typeThe supplier is explicitly classified as a trade company, while its stated scope includes labor protection products, apparel, textiles, medical protective equipment, communication equipment, and electronic products. It is also identified as a professional technical supplier, indicating a trading-oriented business with technical and customization support rather than confirmed manufacturing status.

After-Sales capabilityThe supplier has a clear complaint-handling procedure with followed records, and it has a corrective and preventive action mechanism with implementation records. However, its general service-assessment procedure has no records, and its approved-supplier list lacks approval signatures or dates, indicating documented but incompletely controlled service processes.

R&D capabilityThe supplier is identified as a professional technical supplier and offers ODM services, but it has only one R&D engineer, launched no new products in the past year, and lacks both 3D software design and SDK capabilities. This shows some technical development and design support, but limited demonstrated innovation output and digital R&D capability.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM services, directly evidencing broad customization and design-manufacturing support.

Client casesA repeat-buyer preference of 50%–80% is reported, and the supplier states that it provides OEM services for popular brands. These are positive customer-related indicators, but no named customers, specific projects, order examples, or independently verifiable case details are provided.